{
    "tender_id": 3797546,
    "check": {
        "ok": true,
        "versions": 2,
        "broken_at": null
    },
    "formula": "content_hash = sha256(content); hash = sha256(prev_hash + \"\\n\" + tender_id + \"\\n\" + version + \"\\n\" + recorded_at + \"\\n\" + content_hash [+ \"\\n\" + actor, when the version has one])",
    "versions": [
        {
            "version": 1,
            "recorded_at": "2026-10-28T14:01:21Z",
            "content": "{\"cpv\": \"44163000\", \"url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=127656\", \"buyer\": \"KGHM Polska Miedź S.A. (Mercus Logistyka)\", \"title\": \"DOSTAWA TRÓJNIK P265TR2 244,5 RÓWNOPRZELOTOWY, KOLANO P265TR2 244,5X22,2 90 HAMBURSKIE\", \"region\": \"dolnoslaskie\", \"source\": \"kghm_erfx\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polkowice\", \"source_id\": \"127656\", \"deadline_at\": \"2026-11-02T13:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-28T13:35:00Z\"}",
            "content_hash": "1fc874a821036233103059a11bbd56ddff8404c4303baa690b9649ffefbaa530",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "81d3d5243d8675f0eecf92f23f879e42725ada4526d6212b1c5f122c5077f92d",
            "actor": null,
            "seal": {
                "id": 5,
                "digest": "0659ce1e2aadd7f69ed1ff4603a4290c070eaa14bbeed28a3c9a7cc2127acae9",
                "file": "https://tenderiq.pl/rejestr/pieczec-5.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-5.txt.ots",
                "bitcoin_block": 973609
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-28T17:45:14Z",
            "content": "{\"cpv\": \"44163000\", \"url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=127656\", \"buyer\": \"KGHM Polska Miedź S.A. (Mercus Logistyka)\", \"title\": \"DOSTAWA TRÓJNIK P265TR2 244,5 RÓWNOPRZELOTOWY, KOLANO P265TR2 244,5X22,2 90 HAMBURSKIE\", \"region\": \"dolnoslaskie\", \"source\": \"kghm_erfx\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polkowice\", \"source_id\": \"127656\", \"deadline_at\": \"2026-11-02T13:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-28T13:35:00Z\", \"procedure_url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=127656\"}",
            "content_hash": "d4a4817a295925b11e4cb08cc55e3e72f71e5943f097b458442c67f3ec493233",
            "prev_hash": "81d3d5243d8675f0eecf92f23f879e42725ada4526d6212b1c5f122c5077f92d",
            "hash": "d930df52a8ebdd7a9aff4400e4a7b1aee8c963e418fa3e9af3ec513e28f20981",
            "actor": null,
            "seal": {
                "id": 5,
                "digest": "0659ce1e2aadd7f69ed1ff4603a4290c070eaa14bbeed28a3c9a7cc2127acae9",
                "file": "https://tenderiq.pl/rejestr/pieczec-5.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-5.txt.ots",
                "bitcoin_block": 973609
            }
        }
    ]
}